jsonpath 判断是否包含_JSONPath介绍

/**

* @author itguang

* @create 2017-12-10 10:03

**/

@RunWith(SpringRunner.class)

@SpringBootTest

@Slf4j

public class JSONpathControllerTest {

@Test

public void test() {

User user = new User(“itguang”, “123456”, “123@qq.com”);

String username = (String) JSONPath.eval(user, “$.username”);

log.info(“$.username = {}”, username);

Entity entity = new Entity(123, user);

User user1 = (User) JSONPath.eval(entity, “$.value”);

log.info(“user={}”, user1.toString());

}

@Test

public void test2() {

User user = new User(“itguang”, “123456”, “123@qq.com”);

Entity entity = new Entity(123, user);

//判断entity中是否有 data

boolean contains = JSONPath.contains(entity, “$.data”);

Assert.assertTrue(contains);

//判断 entity.data.username 属性值是否为 itguang

boolean containsValue = JSONPath.containsValue(entity, “$.data.username”, “itguang”);

Assert.assertTrue(containsValue);

Assert.assertEquals(2, JSONPath.size(entity, “$”));

}

@Test

public void test3() {

List entities = new ArrayList();

entities.add(new Entity(“逻辑”));

entities.add(new Entity(“叶文杰”));

entities.add(new Entity(“程心”));

//返回集合中多个元素

List names = (List) JSONPath.eval(entities, “$.name”);

log.info(“返回集合中多个元素names={}”, names);

//返回下标 0 和 2 的元素

List result = (List) JSONPath.eval(entities, “[0,2]”);

log.info(“返回下标 0 和 2 的元素={}”, result);

// 返回下标从0到2的元素

List result2 = (List) JSONPath.eval(entities, “[0:2]”);

log.info(“返回下标从0到2的元素={}”, result2);

}

@Test

public void test4() {

List entities = new ArrayList();

entities.add(new Entity(1001, “逻辑”));

entities.add(new Entity(1002, “程心”));

entities.add(new Entity(1003, “叶文杰”));

entities.add(new Entity(1004, null));

//通过条件过滤，返回集合的子集

List result = (List) JSONPath.eval(entities, “[id in (1001)]”);

log.info(“通过条件过滤，返回集合的子集={}”, result);

}

/**

* 使用JSONPrase 解析JSON字符串或者Object对象

*

* read(String json, String path)//直接使用json字符串匹配

*

* eval(Object rootObject, String path) //直接使用 对象匹配

*

*

* {“store”:{“bicycle”:{“color”:”red”,”price”:19.95},”book”:[{“author”:”Nigel Rees”,”price”:8.95,”category”:”reference”,”title”:”Sayings of the Century”},{“author”:”Evelyn Waugh”,”price”:12.99,”isbn”:”0-553-21311-3″,”category”:”fiction”,”title”:”Sword of Honour”}]}}

*/

@Test

public void test5() {

String jsonStr = “{\n” +

” \”store\”: {\n” +

” \”bicycle\”: {\n” +

” \”color\”: \”red\”,\n” +

” \”price\”: 19.95\n” +

” },\n” +

” \”book\”: [\n” +

” {\n” +

” \”author\”: \”刘慈欣\”,\n” +

” \”price\”: 8.95,\n” +

” \”category\”: \”科幻\”,\n” +

” \”title\”: \”三体\”\n” +

” },\n” +

” {\n” +

” \”author\”: \”itguang\”,\n” +

” \”price\”: 12.99,\n” +

” \”category\”: \”编程语言\”,\n” +

” \”title\”: \”go语言实战\”\n” +

” }\n” +

” ]\n” +

” }\n” +

“}”;

JSONObject jsonObject = JSON.parseObject(jsonStr);

log.info(jsonObject.toString());

//得到所有的书

List books = (List) JSONPath.eval(jsonObject, “$.store.book”);

log.info(“books={}”, books);

//得到所有的书名

List titles = (List) JSONPath.eval(jsonObject, “$.store.book.title”);

log.info(“titles={}”, titles);

//第一本书title

String title = (String) JSONPath.read(jsonStr, “$.store.book[0].title”);

log.info(“title={}”, title);

//price大于10元的book

List list = (List) JSONPath.read(jsonStr, “$.store.book[price > 10]”);

log.info(“price大于10元的book={}”,list);

//price大于10元的title

List list2 =(List) JSONPath.read(jsonStr, “$.store.book[price > 10].title”);

log.info(“price大于10元的title={}”,list2);

//category(类别)为科幻的book

List list3 = (List) JSONPath.read(jsonStr,”$.store.book[category = ‘科幻’]”);

log.info(“category(类别)为科幻的book={}”,list3);

//bicycle的所有属性值

Collection values = (Collection) JSONPath.eval(jsonObject, “$.store.bicycle.*”);

log.info(“bicycle的所有属性值={}”,values);

//bicycle的color和price属性值

List read =(List) JSONPath.read(jsonStr, “$.store.bicycle[‘color’,’price’]”);

log.info(“bicycle的color和price属性值={}”,read);

}

}